Contents

Abstract

In this tutorial, we're going to be showing you how to utilise KConfig XT in an application. It is recommended that you read Development/Tutorials/Using KConfig XT before continuing in order to familiarise yourself with the framework.

This code makes a setting of the type bool, which determines whether we want to do something. Then we set the default value to be true.

Always start the value of <entry name=""> in lower case since KConfig XT sets them to lower case within the generated headers either way. If you don't this could give you some nearly untraceable errors

Now we make a new File called tutorial4.kcfgc.

File=tutorial4.kcfgClassName=tutorial4Singleton=trueMutators=true

This should set up your configuration for now.

The Code

mainwindow.h

#ifndef MAINWINDOW_H

#define MAINWINDOW_H

#include <KXmlGuiWindow>

#include <KTextEdit>

class MainWindow :public KXmlGuiWindow

{

public:

MainWindow(QWidget*parent=0);

private:

KTextEdit* textArea;

void setupActions();

void setupConfig();

void readConfig();

void saveSettings();

int m_showAction;

};

#endif

There are some new voids in here, as well as m_showAction witch determines the value stored in KConfig XT. Despite that value being a bool we can actually use an integer here, since the type is converted either way.

At first we import "tutorial4.h", which should be auto-generated at runtime by KConfig XT every time you compile this. MainWindow and SetupActions are copied from the tutorials before. The only thing new is that we now call a new void called setupConfig. This then calls readConfig. We could also call saveSettings(but only after we called readConfig), but since we don't change any values there this is more of a "proof of concept".

Within readConfig we assign m_showAction the value of the setting showAction. If this returns true setupsActions makes buttons and all that. When false it doesn't.

The setShowActions() in saveSettings() overwrites showAction with a value of your choice, in this case with itself. Then you need to call writeConfig() to apply the changes you made.